531403145344 has 16 divisors (see below), whose sum is σ = 1058654703870. Its totient is φ = 265701572608.

The previous prime is 531403145323. The next prime is 531403145393. The reversal of 531403145344 is 443541304135.

It can be written as a sum of positive squares in only one way, i.e., 445956840000 + 85446305344 = 667800^2 + 292312^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2075793409 + ... + 2075793664.

Almost surely, 2^531403145344 is an apocalyptic number.

It is an amenable number.

531403145344 is a deficient number, since it is larger than the sum of its proper divisors (527251558526).

531403145344 is an equidigital number, since it uses as much as digits as its factorization.

531403145344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151587087 (or 4151587075 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 531403145344 its reverse (443541304135), we get a palindrome (974944449479).

It can be divided in two parts, 5314031 and 45344, that added together give a cube (5359375 = 175³).

The spelling of 531403145344 in words is "five hundred thirty-one billion, four hundred three million, one hundred forty-five thousand, three hundred forty-four".